The Department of Homeland Security has released a memorandum titled U.S. Owners and Operators Using GPS to Obtain Time (https://ics-cert.us-cert.gov/sites/default/files/documents/Memorandum_on_GPS_2019.pdf) intended to provide an understanding of the possible effects of the April 6, 2019 GPS Week Number Rollover on Coordinated Universal Time derived from GPS devices.
Sponsored by the Department of Homeland Security’s National Cybersecurity and Communications Integration Center in coordination with the Department of Homeland Security’s Science and Technology Directorate, the Department of Homeland Security’s National Protection and Programs Directorate Office of Infrastructure Protection, and the National Coordination Office for Space-Based Positioning, Navigation and Timing, this product is intended to assist federal, state, local, and private sector organizations with preparations for the April 6, 2019 GPS Week Number Rollover event.
For more information, go to www.gps.gov.